Should i claim myself as a Dependent or Single on my tax?

okay i am 19 years old and I've made $1953 in 2008. On my W-2 it says my taxable Martial Status is: Single, but i am also a Full-Time Student in college. I have also received a 1098-T form for 107.50. I wanted to know whether my parents can still claim me on their Tax or do i need to claim myself, and i wanted to know if claiming myself is better or claiming as a dependent. Oh and i also wanted to know if i can also claim book expenses also THANKS =]